43883

Octamethylcyclotetrasiloxane

analytical standard

• Linear Formula: [-Si(CH₃)₂O-]₄
• CAS Number: 556-67-2
• Molecular Weight: 296.62
• UNSPSC Code: 77101502
• NACRES: NA.24
• PubChem Substance ID: 329756418
• EC Number: 209-136-7
• Beilstein/REAXYS Number: 1787074
• MDL number: MFCD00003269

Properties

• Product Name: Octamethylcyclotetrasiloxane, analytical standard
• InChI: 1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
• SMILES string: C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
• InChI key: HMMGMWAXVFQUOA-UHFFFAOYSA-N
• grade: analytical standard
• vapor density: 1 (vs air)
• assay: ≥97.0% (GC)
• form: liquid
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.396 (lit.)
• bp: 175-176 °C (lit.)
• mp: 17-18 °C (lit.)
• density: 0.956 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; environmental; food and beverages; personal care
• format: neat
• Quality Level: 100

Description

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

This compound is listed in the SVHC (Substances of very high concern) candidate list of ECHA (European Chemicals Agency)

Safety Information

• pictograms: GHS02,GHS08,GHS09
• signalword: Warning
• hcodes: H226,H361f,H410
• pcodes: P202 - P210 - P233 - P240 - P273 - P308 + P313
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - Repr. 2
• Storage Class: 3 - Flammable liquids
• wgk: WGK 3
• flash_point_f: 123.8 °F - closed cup
• flash_point_c: 51 °C - closed cup